A JetBlue flight from Boston to Sacramento had to be diverted to Rapid City, South Dakota yesterday evening, after severe turbulence left multiple people injured. Bad weather is to blame for the especially bumpy ride that one passenger told NBC News felt like "a tower of terror," comparing it to the popular amusement park ride. Upon landing in Rapid City, 22 passengers and two crew members injured in the ordeal were taken to a hospital for evaluation.

Another passenger tweeted that he saw one woman, who was not wearing a seatbelt, rise two feet in the air. "I literally grabbed her out of the air to hold her to the seat," he said. The turbulence was so bad, that witnesses even report seeing cracks in the overhead bins.

The incident recalls an especially rough Etihad flight from Abu Dhabi to Jakarta in May that left 31 people injured—and which was documented in a nightmarish video by one of the passengers. On JetBlue Flight 429, it appears that the spell of bad weather over the Midwest was caused by "a frontal boundary moving across the central plains," according to CNN. As we have previously reported, the most dangerous incidents of turbulence occur in otherwise clear conditions, when a plane hits a bad patch of air unexpectedly—with flight attendants unprepared, and seatbelts unbuckled. Still, turbulence generally is harmless: The Federal Aviation Administration estimates that only 58 fliers—of the 800 million who take to the skies every year—suffer injuries due to turbulence. (Although, with 55 injuries between the Etihad and JetBlue flights alone, it looks like 2016 could be a particularly bad year.)

As for the passengers left shaken and stranded in Rapid City, JetBlue responded swiftly, sending a replacement aircraft to carry them the rest of the way to Sacramento later that night once the weather cleared.